专利检索_ .磨损防护器;扶正装置例如稳定器专利检索_ .磨损防护器;扶正装置例如稳定器专利检索查询

子分类：

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
261	WEAR RESISTANT TUBULAR CONNECTION	PCT/CA0201114	2002-07-18	WO03008755A2	2003-01-30	SLACK MAURICE WILLIAM; WARREN TOMMY M; ANGMAN PER G; TESSARI ROBERT M
Wear resistant connection (3) for joining lenghts of casing tubulars (2, 4) into assemblies referred to as strings. The wear resistant connection (3) provides a means to substantially prevent loss of material from the exterior surface of the tube wall, in the region of the connection, caused by rotating wear mechanisms present where such strings are placed in boreholes and rotated. In one embodiment, this wear resistant connection (3) provides resistance to eccentric rotating wear mechanisms arising from the bend angle either accidentally or deliberately present in casing connections.
262	WELLBORE LOGGING TOOL ASSEMBLY	US16027113	2018-07-03	US20180328131A1	2018-11-15	Stephen Peter McCormick
A logging tool assembly comprises an elongate sensor assembly, a plurality of sensor transportation apparatuses for transporting the elongate sensor assembly through a wellbore, and an orientation structure. The sensor transportation apparatuses are spaced apart along the elongate sensor assembly. Each sensor transportation apparatus comprises an engagement structure to connect the sensor transportation apparatus to the elongate sensor assembly and prevent relative rotation between the sensor transportation apparatus and the elongate sensor assembly, and one or more pairs of wheels arranged to rotate on an axis of rotation substantially perpendicular to a longitudinal axis of the elongate sensor assembly. The axes of rotation of the pairs of wheels of said transportation apparatuses are parallel. The orientation structure is connected to the elongate sensor assembly to prevent relative rotation between the orientation structure and the elongate sensor assembly. The orientation structure comprises at least one radially extending orientation projection. In a transverse outline of the logging tool assembly a said orientation projection extends between the pair of wheels so that the shortest distance between a centre of gravity of the elongate sensor assembly and the wellbore wall is when the pair of wheels of the transportation apparatus is in contact with the wellbore wall.
263	Downhole drilling assembly	US14313489	2014-06-24	US10119336B2	2018-11-06	Andrew McPherson Downie; Pascal Michel Vitale; Bachar Boussi
A downhole stabilizer (5), such as a drill motor stabilizer, comprises at least one reaming means and/or reinforcing means (10). The present invention also relates to an assembly (30), such as a downhole drilling assembly (31), comprising at least one such stabilizer (5) and/or a drill bit (40,41) comprising a gauge bit (42) at or near a drilling end (45) thereof, and a connection means (46) for connecting the drill bit (40,41) to a drill motor assembly (60), wherein the drill bit gauge (42) comprises a substantially cylindrical portion having a length less than or equal to approximately 1.0 times the nominal bit diameter. The present invention also relates to a novel locking mechanism (80), such as a lock and key mechanism, to allow locking of a shaft (70′), e.g. a motor drive shaft (71′), through or together with a stabilizer (5′).
264	Methods for estimating wellbore gauge and dogleg severity	US14511090	2014-10-09	US10094211B2	2018-10-09	Edward Parkin
Methods for measuring wellbore gauge and dogleg severity are disclosed. The methods include deploying a downhole tool in a subterranean wellbore. The downhole tool includes first and second axially spaced stabilizers deployed on at least one tool body section coupled to a universal joint. The method for measuring wellbore gauge further includes measuring first and second axial directions of the tool body section when the universal joint is tilted in corresponding first and second cross-axial directions and processing the first and second measured axial directions to estimate the wellbore gauge. The method for measuring dogleg severity further includes measuring first and second tilt angles of the universal joint when the universal joint is tilted in corresponding first and second cross-axial directions and then processing the first and second measured tilt angles to estimate the dogleg severity.
265	Riser restrictor device	US14912516	2014-08-12	US10053944B2	2018-08-21	John H. Cohen
A restrictor device for controlling a return flow of drilling fluid from a borehole where drilling fluid is provided from a surface installation via a drill string to a bottom-hole assembly is disclosed. Drill pipes forming the drill string are provided with pipe joints including enlarged-diameter pipe portions. An annulus is formed between a riser and the drill string. The annulus is in fluid communication with a drilling-fluid flow path. The restrictor device is arranged in the annulus. The restrictor device includes a restrictor pipe anchored to the riser and surrounds at least one restrictor element placed on an intermediate pipe portion that connects two enlarged-diameter pipe portions. The length of the restrictor device exceeds the largest distance between two consecutive restrictor elements. The restrictor element is a drill-pipe/casing protector with an external diameter larger than a diameter of the pipe joints.
266	MODULAR TUBULAR PRODUCT FOR WELL APPLICATIONS	US15885005	2018-01-31	US20180223604A1	2018-08-09	Mitchell Z. Dziekonski
A modular tubular system is assembled of a tool handling section and a tubular section. The tool handling section may be made of a material that is suitable for handling by conventional tubular handling tools, such as conventional steel. The tubular section may be made of a different material with desired properties for special applications in a well, such as aluminum, titanium, nickel, or stainless steel alloys, or composite materials. A joint, such as a pin tool joint may be assembled on an end of the tubular section opposite the tool handling section to allow the modular system to be joined with mating tubular products, both conventional and modular. The resulting system provides advantages of the different material of the tubular section while allowing for more robust handling and ease of integration via the handling section.
267	Tubular centralizer	US14647264	2013-11-29	US10000978B2	2018-06-19	Per Angman
A centralizer is provided for centralizing a tubular, such as a drill pipe, in a wellbore. The centralizer comprises a resilient inner sleeve comprising three or more protruding members extending radially outwardly from an outer surface of the inner sleeve. The inner sleeve receives the tubular and spaces the tubular from the wellbore. The centralizer further comprises an outer support body for receiving the outer surface of inner sleeve. When the inner sleeve is retained between the support body and the tubular, the protruding members project out through windows formed in the support body. The support body and the inner sleeve are retained about the tubular with a pair of annular end collars. A method for replacing worn components of the centralizer is also provided.
268	Frictional support of seal bore protector	US15503341	2015-09-08	US09957760B2	2018-05-01	Travis David Watters; Owen Ransom Clark; Joseph Michael Karigan; Anton Kelley Arnt
A seal bore protector for protecting a seal bore of a rotating control device (RCD) is provided. The seal bore protector includes a cylindrical body, a throughbore extending through the cylindrical body, and a sealing element disposed around an external surface of the cylindrical body. The sealing element includes a first sealing ring, a second sealing ring, and a sealed area between the first sealing ring and the second sealing ring. The sealed area is fluidly coupled with a port when the seal bore protector is installed in the rotating control device.
269	CASING DRILLING APPARATUS AND SYSTEM	US15792337	2017-10-24	US20180112471A1	2018-04-26	Stephen B. Poe; Jose Chiarello; Hector Nunez
The present invention provides for casing drilling with a removable MWD tool comprising a float shoe for removably positioning the bottom of a MWD tool at and or near the drill bit inside the casing, a stabilizer attached to the top of the MWD tool for centrally positioning the MWD tool inside the casing, and a spear positioned on the stabilizer for attaching to retrieval equipment known in the art and also contemplated that after the well is drilled with casing pipe and ready for the production process, a retrieval operation may be lowered into the well to retrieve the MWD tool by attaching to the spear.
270	Wellbore filtration tool with novel wiper cup	US14860911	2015-09-22	US09920595B2	2018-03-20	Simon Leiper
The present invention provides wellbore cleaning tool and method featuring a wiper assembly which allows fluid to bypass the tool in one direction while diverting the well fluid through a filter screen in another direction. This may be achieved by either circulation of the fluid in the wellbore or by moving the tool relative to the fluid in the wellbore. The wiper assembly includes multiple groups or series of wiper elements wherein one petal shaped element aligns with a slot to form a seal when the tool body is retrieved from the well.
271	Vortex controlled variable flow resistance device and related tools and methods	US15060269	2016-03-03	US09915107B1	2018-03-13	Roger L. Schultz; Andrew M. Ferguson
A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path is designed to produce alternating primary and secondary vortices—one clockwise and one counter-clockwise—where the primary vortex is stronger and produces higher backpressure than the secondary vortex. This in turn generates alternating weak and strong pressure pulses in the drill string. The weak pulses may be barely perceptible so that the effective frequency of the pulses is determined by the stronger primary vortices.
272	Method of centralising tubing in a wellbore	US15023296	2014-09-18	US09874059B2	2018-01-23	Gjermund Grimsbo; Pål Viggo Hemmingsen; Rune Godøy
A method of centralizing a tubing in a wellbore includes providing one or more expandable elements between the tubing and a surrounding casing located in a wellbore and expanding the expandable elements against the casing so as to cause the tubing to become centered within the casing. Alternatively, one or more portions of a tubing are expanded against a surrounding casing located in a wellbore so as to cause the tubing to become centered within the casing.
273	Torque anchor for blocking the rotation of a production string of a well and pumping installation equipped with such a torque anchor	US14457627	2014-08-12	US09869142B2	2018-01-16	Francois Millet; Stephen Burrows
A torque anchor intended to block the rotation of a production string with respect to a casing of a well; the torque anchor comprising a body and anchor cassettes comprising a wheel having a circumference and a wheel spindle supporting said wheel, a contact point of the circumference of the wheel being intended to come into contact with the casing, an opposite point being arranged diametrically opposite the contact point.For each anchor cassette, the wheel is mounted on the end of the wheel spindle; a positioning angle comprised between 30° and 180° being defined between a first straight line passing through the center of the casing and the contact point and a second straight line passing through the center of the casing and the opposite point.
274	SELF-LOCKING SLURRY TUBE CONNECTOR AND PROTECTION ARRANGEMENT	US15092175	2016-04-06	US20170292352A1	2017-10-12	Joshua Raymond Snitkoff; Elmer Richard Peterson; Roy Woudwijk
A Self-Locking Slurry Tube Connector and Protection Arrangement includes a jumper tube; a tube cover supporting and protective of the jumper tube. A connector sealed to the jumper tube and configured to move on the jumper tube from a first position to a second automatically locked position. A method for joining slurry tubes between adjacent sand screens.
275	Isolation Sleeve for Downhole Equipment	US15062536	2016-03-07	US20170254157A1	2017-09-07	Jason C. Mailand
A protective sleeve is deployable within an oil/gas well to protect a device installed in the well such as a safety valve, for example. The sleeve includes a pressure equalizing dart and an overpressure protection piston. The sleeve also serves to isolate an installed device from harmful substances such as acids and other corrosive fluids.
276	PROTECTION OF DOWNHOLE TOOLS AGAINST MECHANICAL INFLUENCES WITH A PLIANT MATERIAL	US14964223	2015-12-09	US20170167206A1	2017-06-15	Stephan Bernard; Robert Buda
A downhole tool in a wellbore may be at least partially enclosed by a protector. The protector may form a physical barrier between the downhole tool and a wellbore environment. The protector include a sheath formed of a pliant material or a textile and may include one or more hard inserts.
277	UNDERGROUND WATER PUMPING PIPE ASSEMBLY FOR UNDERGROUND WATER MOTOR PUMP	US15118319	2015-02-09	US20170159374A1	2017-06-08	Hyeonju IM
There is provided an underground water pumping pipe assembly, comprising: a first pipe coupled to an underground water motor pump; second to n-th pipes wherein the second pipe is coupled to the first pipe; a packing configured to wrap the first pipe; clamping bands, each band coupled to each first securing portion to fix the packing to the first pipe; and first coupling members to receive therein the first pipe and be coupled to the top and bottom of the packing respectively, wherein each first coupling member has a first member body and first and second guides formed on the body to be vertically arranged to be alternated with each other to define spaces therebetween, wherein an electrical wire and a wire rope for the motor pump extend through the spaces respectively.
278	Sealing a portion of a wellbore	US14736577	2015-06-11	US09650859B2	2017-05-16	Shaohua Zhou
A downhole tool system includes a base tubular that includes a bore therethrough; a centralizer positioned to ride on the base tubular, the centralizer expandable to contact a wellbore wall and adjust a location of the downhole tool system relative to the wellbore wall based on a first fluid pressure supplied through the bore; and a liner top assembly positioned to ride on the base tubular, the liner top assembly including a wellbore liner and a pack-off element, the pack-off element expandable to at least partially seal a liner top of the wellbore liner to the wellbore wall based on a second fluid pressure supplied through the bore.
279	Modular annular debris barrier with rotationally locked segments	US14222047	2014-03-21	US09624733B2	2017-04-18	Russell K. Fleetwood; Matthew J. Krueger; Thorsten Regener; Jonathan P. Hanson
An annularly shaped modular debris barrier can be mounted to an internal or an external member that are spaced apart to define an annular gap that could collect debris. The modules rotationally lock. Modules have circumferential segments that can be initially spaced apart to promote flexing that can occur when there is relative axial movement between the structures that define the annular gap. The gaps between segments are circumferentially offset as between adjacent segments to create a labyrinth through which the fluid can move in opposed direction while at the same time causing the debris to be retained. The segments stay in a flexed condition to exert a contract stress on the free ends thereof that touch the adjacent structure.
280	Drill pipe protector assembly	US14539724	2014-11-12	US09617801B2	2017-04-11	Steinar Wasa Tverlid
A drill pipe protector assembly comprising at least one protector sleeve (23) adapted to be mounted to the drill pipe string (7) through a fluid bearing (25) so as to be co-axially rotatable with respect to the drill pipe string (7). A retainer arrangement (21, 35) axially fixes the protector sleeve (23) with respect to the drill pipe string (7). The fluid bearing (25) is constructed according to the principles of a hydrostatic fluid bearing. At least one fluid channel (53) connects the fluid bearing (25) to a fluid path of pressurized drilling fluid flowing within an inner space (51) of the drill pipe string (7).

9 10 11 12 13 14 15 16 17 18

该功能需要专业版企业版VIP权限，您可以：